infra: compile: fix jvm introspector builds

[DavidKorczynski]

Ref: #10481 (comment)

Java projects are currently failing Fuzz Introspector following #10538

Step #6 - "compile-libfuzzer-introspector-x86_64": ---------------------------------------------------------------
Step #6 - "compile-libfuzzer-introspector-x86_64": chmod: cannot access '/workspace/out/libfuzzer-introspector-x86_64/jazzer_driver_with_sanitizer': No such file or directory
Step #6 - "compile-libfuzzer-introspector-x86_64": ********************************************************************************

There is a missing "introspector" conditional in

oss-fuzz/infra/base-images/base-builder/compile

Lines 152 to 171 in 6922c8c

	if [ "$FUZZING_LANGUAGE" = "jvm" ]; then
	cp $(which jazzer_agent_deploy.jar) $(which jazzer_driver) $OUT/
	jazzer_driver_with_sanitizer=$OUT/jazzer_driver_with_sanitizer
	if [ "$SANITIZER" = "address" ]; then
	cat > $jazzer_driver_with_sanitizer << 'EOF'
	#!/bin/bash
	this_dir=$(dirname "$0")
	"$this_dir/jazzer_driver" --asan "$@"
	EOF
	elif [ "$SANITIZER" = "undefined" ]; then
	cat > $jazzer_driver_with_sanitizer << 'EOF'
	#!/bin/bash
	this_dir=$(dirname "$0")
	"$this_dir/jazzer_driver" --ubsan "$@"
	EOF
	elif [ "$SANITIZER" = "coverage" ]; then
	# Coverage builds require no instrumentation.
	cp $(which jazzer_driver) $jazzer_driver_with_sanitizer
	fi
	chmod +x $jazzer_driver_with_sanitizer

This causes line 171 to fail.

It may be convenient to search for "jvm" in the table here https://introspector.oss-fuzz.com/indexing-overview which will show the introspector build status is red for all.

[oliverchang]

/gcbrun trial_build.py jvm --sanitizer introspector --fuzzing-engine libfuzzer

[jonathanmetzman]

It's not clear to me why trial build failed here.